Rock-drill mount.



UNIT ED STATES Patented May 23, 1905.

MATHIAS KUZEL, OF PENZBERG, GERMANY.

ROCK-DRILL MOUNT.

SPECIFICATION forming part of Letters Patent No. 790,506, dated May 2?,1905.

To all whom it may concern.-

Be it known that I, MA'IHIAS KUZEL, a citizen of Germany, residing atPenzberg, Bavaria, Germany, have invented certain new and usefulImprovements in Rock-Drill Mounts; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to rock-drill mounts, and has for its object theprovision of mechanism by means of which the drill may be operated inslopes or drifts with the greatest economy of space combined with thehighest efficiency in operation. In the form of apparatus hitherto usedin this connection the drill is usually mounted either above or below asleeve which is rotatably secured to a suitable standard or pillar, theresult being that a comparatively large space is required for theoperation of the drill, it being impossible to work close to the flooror roof ofthe drift. This disadvantage is obviated in the presentinvention by reason of its peculiar properties in that the mechanism forturning the sleeve, and with it the drill, is arranged midway of thesleeve itself, whereby the entire apparatus is condensed into such a Ismall space that the drill may be operated very close to the floor androof, approximately within thirty-five centimeters thereof. In order tomake this invention perfectly clear, an embodiment of the same is shownin the accompanying drawings, in which Figure 1 is a plan view of themount, partly in section. Fig. 2 is a side elevation. Fig. 3 is a sideelevation at right angles to Fig. 2; and Fig. 4 represents the apparatusassembled in its entirety, showing the manner of operation.

Referring to the drawings in detail, a pillar or standard I) is erectedin the ordinary well-known way. Upon this standard is arranged aworm-wheel c, which is movable longitudinally thereof, but fixed againstrotary movement relative thereto by means of a spline d and groove d. Abifurcated sleeve it encircles the standard, embracing with itsbifurcated portion the worm-wheel Application filed October 10,1904.Serial No. 227,864.

0. This sleeve is loosely' mounted on the standard 6, and thereforecapable of rotation, being adjustably held in any desired position bymeans of the collar gand set-screw. The sleeve 72. is provided withprojections which serve as .bearings for the worm e, the axle of whichisprovided with the crank f. An arm a, projecting from the sleeve it,serves as a pivotal mounting for the drill i.

It will be noted that the pivotal mounting of the drill is insubstantially the same horizontal plane as the worm'c and the axle ofthe worm e, which plane is approximately midway of the ad justing-sleeveit. By this arrangement, as heretofore pointed out, it is possible tooperate the drill from a position in close proximity to the bottom andtop of the drift.

Having thus fully described my invention, what I claim as new, anddesireto secure by Letters Patent, is

1. In a drill-mount, the combination, with a standard, and a sleeveadjustable thereon, of a drill mounted directly on the sleeve at a pointsubstantially in the plane of the transverse axis thereof i 2. In adrill-mount, the combination, with a standard, a sleeve adjustablevertically thereon, and a means for rotating the sleeve upon thestandard, of a drill mounted on the sleeve at a point substantially inthe same horizontal plane as the means for rotating the sleeve.

3. In a drill-mount, the combination, with a standard, a sleeveadjustable vertically thereon, a worm-wheel adjustable on the standardby means of a spline and groove, and aworm carried by the sleeve andengaging with the worm-wheel, of a drill mounted on the sleeve at apoint substantially within a horizontal a spline and groove andoccupying a position in the bifurcated portion of the sleeve, a wormcarried by the sleeve and engaging With the In testimony whereof Ihereunto aliix my Worm-Wheel, and a crank for operating the signature inthe presence of two Witnesses. Worm, of an arm projecting from thesleeve, and a drill mounted on the arm at a point 5 substantially withina horizontal plane em- Witnesses:

bracing the Worm, and Worm-Wheel and pass- MICH. KUZEL. ing through thetransverse axis of the sleeve. ADoLF EIGHINGER.

MTH. KUZEL.

